Lock-hinge



(No Model.)

P. N. KELSEY.

LOGK HINGE.

No. 476,466. Patented June 7, 1892.

UNITED STATES PATENT OEEicE.

FRANK N. KELSEY, OF FLORENCE, MASSACHUSETTS.

LOCK-HlNGE.

SPECIFICATION formingpart of Letters Patent No. 476,466, dated June *7, 1892.

Application filed October 5, 1891. Serial No. 407,814. (No model.)

To all whom it may concern:

Be it known that I, FRANK N. KELSEY, a citizen of the United States, residing at Florence, in the county of Hampshire and State of Massachusetts, have invented new and useful Improvements in Lock-Hinges, of which the following is a specification.

This invention relates to improvements in lock-hinges which are especially designed for the hinge-hanging of blinds, doors and the like, the hinge embodying capabilities for exerting such spring action that the door or blind may be spring-retained in any of several positions,but of course capable of having its position changed when forced with sufficient positive pressure to overcome the springstress.

This invention has for its object the provision of a spring-hinge of the character set forth which, first, owing to the form and arrangement of its parts,maybe efficiently produced as to all parts thereof, excepting the spring, by casting, requiring no machine-finishing, and, secondly, is susceptible of having the members thereof easily assembled or segregated, avoiding annoyances hereto fore common in the application of certain forms of spring-hinges.

The invention consists in the combination or arrangement of parts and the particular construction of certain of the parts, all substantially as will hereinafter more fully appear, and be set forth in the claims.

Reference is to be had to the accompanying drawings,in which this inventionis illustrated, Figure 1 being a front view of the hinge, shown as applied, for instance, for the hinge-support of a blind on a window-casing. Fig. 2 is a plan view of the same. Fig. 3 is a horizontal section of the same, taken on line 3 3, Fig.1. Figs. 4, 5, and 6 are perspective views of the separated parts of the hinge; and Fig. 7 is an enlarged cross-sectional viewor diagram through the spring-resisting part, as taken on the horizontal plane at the line 7 7 of Fig. 6.

The hinge consists of three parts or castings A B O and the fiat spring D.

The casting A is the stationary part of the hinge and embodies a semi-cylindrical shell or casing a, open at its rear side, provided with upper and lower partially-closing walls or heads I) and lugs (2, through which the fastening-screws may be passed. The uniting and spring'resisting part 0 embodies a stud f, which, toward its bottom, is provided with radial hearing or cam-like extensions g, the lower extremity of the stud entering for a bearing in the socket-aperture h in the bottom wall of the casting A, and the stud also projects upwardly above its radially-extended portions through the recess 2' in the top wall of the casting, and, as shown, is pear-shaped or of other equivalent form in cross-section to spline-engage the hub j of the swinging hinge member B, which rests upon the top wall of the said semi-cylindrical shell. The hub hasacorrespondingly-formed aperture j. The opposite side walls of the casting-shell A, near the rear thereof, are apertured as at It, through which may be entered the flat spring D to lie with its edges in a vertical plane at a proper distance back from the axis of the rotatable part 0. The foot-plates or webs cl, which are formed as continuations of the confinement-lugs (1 cl, have cast thereon the stops m for confining the spring against endwise displacement after the same has been placed or sprung into the position shown and the parts of the hinge are assembled. The borders of said apertures 75 maintain the spring against any transverse displacement.

The casting or part B comprises, in addition to the hub 7', which has in substance a spline or key engagement with the rotatable and uniting part 0, the bracket-arm n and the confinement-plate 0, through which to screw the said member 12 to the blind or other part, which is to be movably or hinge supported. The hub j of the part B rests upon the top of the said casing comprised in the member A.

It will be noticed that the aperture i in the top of the semi-cylindrical casing (see Fig. 5) extends to the rear open side of said casing, and it will also be noticed with reference to Fig. 7 that the stud at its part which is provided with bearing extensions 9 is at one side (in said view shown as the rear or upper side) of less radial extension from the axis of the stud than at the other sides. This may be seen by noting the course of the concentric circle in the diagram, Fig. 7, with reference to the faces of the several projections g. Now in the assemblement of the parts before the member B is connected and before the spring has been put in position across the rear opening in the casing member the part 0 is applied relative to the part A by having its lower shaft port-ion entered into the socket h, the upper shaft portion being passed into the recess 2' from the rear. Care is exercised so that. the least prominent of the extensions g, as explained, are toward the open side of the casing member. The spring is now put into position, and the member B, by beinginverted, may be used as a wrench to force the shaft 0 around for a quarter or a half rotation, so that the more prominent of the extensions g are in bearing upon the spring.

The inversion of the member B to act as a wrench is to permit the part thereof which is offset from the end hub to pass by the lugs d at the upper part of the casting A. Of course other means for turning the shaft maybe employed; but that included in the hinge member B is always at hand and practical for the purpose.

The assemblage of the parts, especially the part 0 with the one A, is by reason of the features of construction set forth readily performed, and may be done at the factory, and in the application of the hinge by the user of course no di'fficulty will be experienced in connecting the movable hinged member I) to the other parts, his utilization of the device in no way requiring the displacement of the spring, and thus annoyance heretofore experienced in the setting up of spring-hinges is under the presentinvention done away with. Of course it will be apparent that the spring actingon the oblate portions of the intermediate bearing part between the ends of the shaftf will tend to hold the shaft part against rotational movement, and consequently the blind, door, &c., against swinging or vibrating, and yet the door may be swung when sufficient force is intelligently applied thereupon to secure the deflection of the spring, as an extension 9 has its impingement against the face thereof.

I claim 1. A hinge one member of which consists of a hollow casting or shell with apertures 7; k in the opposite side walls thereof and a stud mounted verticallyand rotatabl y thereon, one portion of which is projected through and above the upper wall of the shell, another portion of the said stud being contained within the shell and provided thereat with outward extensions and intermediately thereof less prominent sections, a flat spring supported by the borders of said apertures and in a position to be intermediately thereof impinged upon by the said stud extensions, and the other member of the hinge having a fixed engagement with the upwardly-proj ected portion of the stud, substantially as described.

2. In a hinge, the combination, with a casing or shell, open at its rear side and having upper and lower walls, the latter having the socket 7L and the upper wall being provided with the recess *6, which extends to the rear open side of the shell and the opposite side walls of the shell having the apertures 70, and confinement-lugs, as d, of a stud having between its ends the extensions g g with intermediate depressions and said stud having its lower portion bearing in said socket 7L and its upper portion extended through said aperture 2' and beyond the top of the casing, and the flat spring extended across the rear side of said chambered shell and held against transverse displacement by the borders of said apertures k, the movable hinge member G, comprising the arm which at its extremity rests upon the top of the chambered hinge member and has an engagement with said stud, and one or more stops for preventing endwise movement of the spring, substantially as described.

3. In a hinge, the combination, with the casing, open at its rear and having upper and lower walls, the lower wall having the socket 7L and the upper one being formed with a recess i, which extends to the rear open side of the casing, of a stud having between its ends radially-projecting extensions 9 g with intermediate depressions, the portion of the stud comprising such features being less extended at one side of the axis than the others, the spring extending across the chamber in said shell relative to the said extension-provided stud, substantially as described, and the movable hinge member connected to the stud, substantially as and for the purposes set forth.

FRANK N. KELSEY.

Vitnesses:

H. A. CHAPIN, WM. 8. BnLLows.

ICO 

